|Botanical Name:||Brassica napus|
Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Stewart Brandt, Bayer CropScience Inc., Saskatoon, Saskatchewan
|Protective direction granted:||2011-07-19|
|Grant of Rights Date:||2013-06-21|
|Exemption from compulsory licensing:||Yes|
|Expiry date for exemption from compulsory licensing:||2015-06-21|
|Date rights surrendered:||2015-02-11|
Varieties used for comparison: 'PPS98-274', 'PPS02-364' and '5030'
Summary: 'PR0CN437' has a smaller cotyledon than '5030'. The petiole of 'PR0CN437' is longer than 'PPS02-364'. 'PR0CN437' has a shorter silique than 'PPS98-274' and 'PPS02-364'. The beak of 'PR0CN437' is shorter than 'PPS98-274' and 'PPS02-364'. 'PR0CN437' has a shorter pedicel than 'PPS98-274'. At maturity, the plant height of 'PR0CN437' is shorter than '5030'. 'PR0CN437' has a lower protein content as a percentage of dried oil free meal than the reference varieties.
PLANT: male fertile restorer inbred line, spring type, short to medium height at maturity
COTYLEDON: narrow to medium width, short to medium length
LEAF: medium green, medium to many lobes, sharp margin, low to medium density of shallow to medium depth dentations, medium to long length, medium width, medium to long petiole
FLOWER PETAL: yellow, medium length, medium to wide width
SILIQUE: semi-erect to horizontal attitude, medium length, short to medium length beak, medium length pedicel
AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.03% of total fatty acids, oil content is 47.9% of whole dried seed, protein is 42.7% of dried oil free meal, very low glucosinolates (6.59 µmol/g)
Origin & Breeding History: 'PR0CN437' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line 07-356-141 containing the Rf3 gene construct in homozygous state. The cross was made in 2006 with the doubled haploid line being extracted in 2007. 'PR0CN437' was selected in 2009 on the basis of fertility restoration of numerous male sterile lines and expression of tolerance to glufosinate-ammonium herbicide. Other selection parameters included height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, glucosinolate content and combining ability.
Tests & Trials: Trials were conducted in the summers of 2010 and 2011 in Saskatoon, Saskatchewan. Plots each year consisted of 3 rows with a row length of 6 metres and a row spacing of 50cm. In 2010, the trial was set up as 8 x 9 lattice with 3 replications. In 2011, the trial was set up as a RCB Design with 3 replications. There were 40 measurements of the cotyledon characteristics, 30 of the leaf, flower and plant height characteristics and 60 for the silique characteristics. Means are based on a two year average. Differences are significant at the 2% probability level based on LSD values.
Comparison tables for 'PR0CN437' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'
Cotyledon width (mm)
Cotyledon length (mm)
Petiole length (mm)
Silique length (mm)
Beak length (mm)
Pedicel length (mm)
Plant height at maturity (cm)
Protein content (% of dried oil free meal)
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